I am delighted to report that I have found a source of most excellent quality Vitamins M, P and V. In the basement of Fortnum & Mason, in the corner opposite the wine shop, is a small glass counter in which are hidden a variety of port, mutton and venison pies. I had a mutton and caper pie for lunch yesterday and can report that it was entirely delicious.

What's more, you can buy half pies so can mix and match or be a slightly greedy bar steward consuming only one and a half pies rather than a gluttonous two pies.